Merge "BubbleData [7/n]: BubbleData impl and tests!!" into qt-dev (c8e445c6) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/bubbles/Bubble.java

+38 −1

Original line number	Diff line number	Diff line
		@@ -16,9 +16,12 @@
		package com.android.systemui.bubbles;


		import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;

		import android.os.UserHandle;
		import android.view.LayoutInflater;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.systemui.R;
		import com.android.systemui.statusbar.notification.collection.NotificationEntry;

		@@ -40,15 +43,24 @@ class Bubble {
		public NotificationEntry entry;
		BubbleView iconView;
		BubbleExpandedView expandedView;
		private long mLastUpdated;
		private long mLastAccessed;

		private static String groupId(NotificationEntry entry) {
		UserHandle user = entry.notification.getUser();
		return user.getIdentifier() + '\|' + entry.notification.getPackageName();
		return user.getIdentifier() + "\|" + entry.notification.getPackageName();
		}

		/** Used in tests when no UI is required. */
		@VisibleForTesting(visibility = PRIVATE)
		Bubble(NotificationEntry e) {
		this (e, null);
		}

		Bubble(NotificationEntry e, BubbleExpandedView.OnBubbleBlockedListener listener) {
		entry = e;
		mKey = e.key;
		mLastUpdated = e.notification.getPostTime();
		mGroupId = groupId(e);
		mListener = listener;
		}
		@@ -101,12 +113,37 @@ class Bubble {

		void setEntry(NotificationEntry entry) {
		this.entry = entry;
		mLastUpdated = entry.notification.getPostTime();
		if (mInflated) {
		iconView.update(entry);
		expandedView.update(entry);
		}
		}

		public long getLastActivity() {
		return Math.max(mLastUpdated, mLastAccessed);
		}

		/**
		* Should be invoked whenever a Bubble is accessed (selected while expanded).
		*/
		void markAsAccessedAt(long lastAccessedMillis) {
		mLastAccessed = lastAccessedMillis;
		entry.setShowInShadeWhenBubble(false);
		}

		/**
		* @return whether bubble is from a notification associated with a foreground service.
		*/
		public boolean isOngoing() {
		return entry.isForegroundService();
		}

		@Override
		public String toString() {
		return "Bubble{" + mKey + '}';
		}

		@Override
		public boolean equals(Object o) {
		if (this == o) return true;

packages/SystemUI/src/com/android/systemui/bubbles/BubbleController.java

+35 −4

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.provider.Settings;
		import android.service.notification.StatusBarNotification;
		import android.util.Log;
		import android.view.Display;
		import android.view.IPinnedStackController;
		import android.view.IPinnedStackListener;
		@@ -83,6 +84,7 @@ import javax.inject.Singleton;
		public class BubbleController implements ConfigurationController.ConfigurationListener {

		private static final String TAG = "BubbleController";
		private static final boolean DEBUG = true;

		@Retention(SOURCE)
		@IntDef({DISMISS_USER_GESTURE, DISMISS_AGED, DISMISS_TASK_FINISHED, DISMISS_BLOCKED,
		@@ -203,6 +205,9 @@ public class BubbleController implements ConfigurationController.ConfigurationLi

		configurationController.addCallback(this /* configurationListener */);

		mBubbleData = data;
		mBubbleData.setListener(mBubbleDataListener);

		mNotificationEntryManager = Dependency.get(NotificationEntryManager.class);
		mNotificationEntryManager.addNotificationEntryListener(mEntryListener);

		@@ -219,9 +224,6 @@ public class BubbleController implements ConfigurationController.ConfigurationLi
		} catch (RemoteException e) {
		e.printStackTrace();
		}

		mBubbleData = data;
		mBubbleData.setListener(mBubbleDataListener);
		mSurfaceSynchronizer = synchronizer;

		mBarService = IStatusBarService.Stub.asInterface(
		@@ -482,7 +484,7 @@ public class BubbleController implements ConfigurationController.ConfigurationLi
		}

		@Override
		public void onSelectionChanged(Bubble selectedBubble) {
		public void onSelectionChanged(@Nullable Bubble selectedBubble) {
		if (mStackView != null) {
		mStackView.setSelectedBubble(selectedBubble);
		}
		@@ -506,6 +508,18 @@ public class BubbleController implements ConfigurationController.ConfigurationLi
		public void apply() {
		mNotificationEntryManager.updateNotifications();
		updateVisibility();

		if (DEBUG) {
		Log.d(TAG, "[BubbleData]");
		Log.d(TAG, formatBubblesString(mBubbleData.getBubbles(),
		mBubbleData.getSelectedBubble()));

		if (mStackView != null) {
		Log.d(TAG, "[BubbleStackView]");
		Log.d(TAG, formatBubblesString(mStackView.getBubblesOnScreen(),
		mStackView.getExpandedBubble()));
		}
		}
		}
		};

		@@ -623,6 +637,23 @@ public class BubbleController implements ConfigurationController.ConfigurationLi
		entry.setShowInShadeWhenBubble(!suppressNotification);
		}

		static String formatBubblesString(List<Bubble> bubbles, Bubble selected) {
		StringBuilder sb = new StringBuilder();
		for (Bubble bubble : bubbles) {
		if (bubble == null) {
		sb.append(" <null> !!!!!\n");
		} else {
		boolean isSelected = (bubble == selected);
		sb.append(String.format("%s Bubble{act=%12d, ongoing=%d, key=%s}\n",
		((isSelected) ? "->" : " "),
		bubble.getLastActivity(),
		(bubble.isOngoing() ? 1 : 0),
		bubble.getKey()));
		}
		}
		return sb.toString();
		}

		/**
		* Return true if the applications with the package name is running in foreground.
		*

packages/SystemUI/src/com/android/systemui/bubbles/BubbleData.java

+308 −68

Original line number	Diff line number	Diff line
		@@ -17,21 +17,26 @@ package com.android.systemui.bubbles;

		import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;

		import android.app.ActivityManager;
		import static java.util.stream.Collectors.toList;

		import android.app.Notification;
		import android.app.PendingIntent;
		import android.content.Context;
		import android.util.Log;

		import androidx.annotation.Nullable;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.systemui.bubbles.BubbleController.DismissReason;
		import com.android.systemui.statusbar.notification.collection.NotificationEntry;

		import java.util.ArrayList;
		import java.util.Collection;
		import java.util.Collections;
		import java.util.Comparator;
		import java.util.HashMap;
		import java.util.Iterator;
		import java.util.List;
		import java.util.Map;
		import java.util.Objects;

		import javax.inject.Inject;
		@@ -44,6 +49,15 @@ import javax.inject.Singleton;
		public class BubbleData {

		private static final String TAG = "BubbleData";
		private static final boolean DEBUG = false;

		private static final int MAX_BUBBLES = 5;

		private static final Comparator<Bubble> BUBBLES_BY_LAST_ACTIVITY_DESCENDING =
		Comparator.comparing(Bubble::getLastActivity).reversed();

		private static final Comparator<Map.Entry<String, Long>> GROUPS_BY_LAST_ACTIVITY_DESCENDING =
		Comparator.<Map.Entry<String, Long>, Long>comparing(Map.Entry::getValue).reversed();

		/**
		* This interface reports changes to the state and appearance of bubbles which should be applied
		@@ -83,7 +97,7 @@ public class BubbleData {
		void onOrderChanged(List<Bubble> bubbles);

		/** Indicates the selected bubble changed. */
		void onSelectionChanged(Bubble selectedBubble);
		void onSelectionChanged(@Nullable Bubble selectedBubble);

		/**
		* The UI should transition to the given state, incorporating any pending changes during
		@@ -98,16 +112,28 @@ public class BubbleData {
		void apply();
		}

		interface TimeSource {
		long currentTimeMillis();
		}

		private final Context mContext;
		private final List<Bubble> mBubbles = new ArrayList<>();
		private List<Bubble> mBubbles;
		private Bubble mSelectedBubble;
		private boolean mExpanded;

		// TODO: ensure this is invalidated at the appropriate time
		private int mSelectedBubbleExpandedPosition = -1;

		private TimeSource mTimeSource = System::currentTimeMillis;

		@Nullable
		private Listener mListener;

		@VisibleForTesting
		@Inject
		public BubbleData(Context context) {
		mContext = context;
		mBubbles = new ArrayList<>();
		}

		public boolean hasBubbles() {
		@@ -122,29 +148,41 @@ public class BubbleData {
		return getBubbleWithKey(key) != null;
		}

		@Nullable
		public Bubble getSelectedBubble() {
		return mSelectedBubble;
		}

		public void setExpanded(boolean expanded) {
		if (setExpandedInternal(expanded)) {
		mListener.apply();
		dispatchApply();
		}
		}

		public void setSelectedBubble(Bubble bubble) {
		if (DEBUG) {
		Log.d(TAG, "setSelectedBubble: " + bubble);
		}
		if (setSelectedBubbleInternal(bubble)) {
		mListener.apply();
		dispatchApply();
		}
		}

		public void notificationEntryUpdated(NotificationEntry entry) {
		if (DEBUG) {
		Log.d(TAG, "notificationEntryUpdated: " + entry);
		}
		Bubble bubble = getBubbleWithKey(entry.key);
		if (bubble == null) {
		// Create a new bubble
		bubble = new Bubble(entry, this::onBubbleBlocked);
		mBubbles.add(0, bubble); // TODO: reorder/group
		mListener.onBubbleAdded(bubble);
		doAdd(bubble);
		dispatchOnBubbleAdded(bubble);
		} else {
		// Updates an existing bubble
		bubble.setEntry(entry);
		mListener.onBubbleUpdated(bubble);
		doUpdate(bubble);
		dispatchOnBubbleUpdated(bubble);
		}
		if (shouldAutoExpand(entry)) {
		setSelectedBubbleInternal(bubble);
		@@ -154,49 +192,148 @@ public class BubbleData {
		} else if (mSelectedBubble == null) {
		setSelectedBubbleInternal(bubble);
		}
		// TODO: reorder/group
		mListener.apply();
		dispatchApply();
		}

		private void doAdd(Bubble bubble) {
		if (DEBUG) {
		Log.d(TAG, "doAdd: " + bubble);
		}
		int minInsertPoint = 0;
		boolean newGroup = !hasBubbleWithGroupId(bubble.getGroupId());
		if (isExpanded()) {
		// first bubble of a group goes to the end, otherwise it goes within the existing group
		minInsertPoint =
		newGroup ? mBubbles.size() : findFirstIndexForGroup(bubble.getGroupId());
		}
		insertBubble(minInsertPoint, bubble);
		if (!isExpanded()) {
		packGroup(findFirstIndexForGroup(bubble.getGroupId()));
		}
		if (mBubbles.size() > MAX_BUBBLES) {
		mBubbles.stream()
		// sort oldest first (ascending lastActivity)
		.sorted(Comparator.comparingLong(Bubble::getLastActivity))
		// skip the selected bubble
		.filter((b) -> !b.equals(mSelectedBubble))
		.findFirst()
		.ifPresent((b) -> {
		doRemove(b.getKey(), BubbleController.DISMISS_AGED);
		dispatchApply();
		});
		}
		}

		private void doUpdate(Bubble bubble) {
		if (DEBUG) {
		Log.d(TAG, "doUpdate: " + bubble);
		}
		if (!isExpanded()) {
		// while collapsed, update causes re-sort
		mBubbles.remove(bubble);
		insertBubble(0, bubble);
		packGroup(findFirstIndexForGroup(bubble.getGroupId()));
		}
		}

		public void notificationEntryRemoved(NotificationEntry entry, @DismissReason int reason) {
		int indexToRemove = indexForKey(entry.key);
		if (indexToRemove >= 0) {
		Bubble removed = mBubbles.remove(indexToRemove);
		removed.setDismissed();
		mListener.onBubbleRemoved(removed, reason);
		maybeSendDeleteIntent(reason, removed.entry);
		if (DEBUG) {
		Log.d(TAG, "notificationEntryRemoved: entry=" + entry + " reason=" + reason);
		}
		doRemove(entry.key, reason);
		dispatchApply();
		}

		if (mBubbles.isEmpty()) {
		private void doRemove(String key, @DismissReason int reason) {
		int indexToRemove = indexForKey(key);
		if (indexToRemove >= 0) {
		Bubble bubbleToRemove = mBubbles.get(indexToRemove);
		if (mBubbles.size() == 1) {
		// Going to become empty, handle specially.
		setExpandedInternal(false);
		setSelectedBubbleInternal(null);
		} else if (removed == mSelectedBubble) {
		}
		mBubbles.remove(indexToRemove);
		dispatchOnBubbleRemoved(bubbleToRemove, reason);

		// Note: If mBubbles.isEmpty(), then mSelectedBubble is now null.
		if (Objects.equals(mSelectedBubble, bubbleToRemove)) {
		// Move selection to the new bubble at the same position.
		int newIndex = Math.min(indexToRemove, mBubbles.size() - 1);
		Bubble newSelected = mBubbles.get(newIndex);
		setSelectedBubbleInternal(newSelected);
		}
		// TODO: reorder/group
		mListener.apply();
		bubbleToRemove.setDismissed();
		maybeSendDeleteIntent(reason, bubbleToRemove.entry);
		}
		}

		public void dismissAll(@DismissReason int reason) {
		boolean changed = setExpandedInternal(false);
		if (DEBUG) {
		Log.d(TAG, "dismissAll: reason=" + reason);
		}
		if (mBubbles.isEmpty()) {
		return;
		}
		setExpandedInternal(false);
		setSelectedBubbleInternal(null);
		while (!mBubbles.isEmpty()) {
		Bubble bubble = mBubbles.remove(0);
		bubble.setDismissed();
		maybeSendDeleteIntent(reason, bubble.entry);
		mListener.onBubbleRemoved(bubble, reason);
		changed = true;
		dispatchOnBubbleRemoved(bubble, reason);
		}
		if (setSelectedBubbleInternal(null)) {
		changed = true;
		dispatchApply();
		}
		if (changed) {
		// TODO: reorder/group

		private void dispatchApply() {
		if (mListener != null) {
		mListener.apply();
		}
		}

		private void dispatchOnBubbleAdded(Bubble bubble) {
		if (mListener != null) {
		mListener.onBubbleAdded(bubble);
		}
		}

		private void dispatchOnBubbleRemoved(Bubble bubble, @DismissReason int reason) {
		if (mListener != null) {
		mListener.onBubbleRemoved(bubble, reason);
		}
		}

		private void dispatchOnExpandedChanged(boolean expanded) {
		if (mListener != null) {
		mListener.onExpandedChanged(expanded);
		}
		}

		private void dispatchOnSelectionChanged(@Nullable Bubble bubble) {
		if (mListener != null) {
		mListener.onSelectionChanged(bubble);
		}
		}

		private void dispatchOnBubbleUpdated(Bubble bubble) {
		if (mListener != null) {
		mListener.onBubbleUpdated(bubble);
		}
		}

		private void dispatchOnOrderChanged(List<Bubble> bubbles) {
		if (mListener != null) {
		mListener.onOrderChanged(bubbles);
		}
		}

		private void dispatchShowFlyoutText(Bubble bubble, String text) {
		if (mListener != null) {
		mListener.showFlyoutText(bubble, text);
		}
		}

		/**
		* Requests a change to the selected bubble. Calls {@link Listener#onSelectionChanged} if
		* the value changes.
		@@ -204,7 +341,10 @@ public class BubbleData {
		* @param bubble the new selected bubble
		* @return true if the state changed as a result
		*/
		private boolean setSelectedBubbleInternal(Bubble bubble) {
		private boolean setSelectedBubbleInternal(@Nullable Bubble bubble) {
		if (DEBUG) {
		Log.d(TAG, "setSelectedBubbleInternal: " + bubble);
		}
		if (Objects.equals(bubble, mSelectedBubble)) {
		return false;
		}
		@@ -213,16 +353,17 @@ public class BubbleData {
		+ " (" + bubble + ") bubbles=" + mBubbles);
		return false;
		}
		if (mExpanded) {
		// TODO: bubble.markAsActive() ?
		bubble.entry.setShowInShadeWhenBubble(false);
		if (mExpanded && bubble != null) {
		mSelectedBubble.markAsAccessedAt(mTimeSource.currentTimeMillis());
		}
		mSelectedBubble = bubble;
		mListener.onSelectionChanged(mSelectedBubble);
		dispatchOnSelectionChanged(mSelectedBubble);
		if (!mExpanded \|\| mSelectedBubble == null) {
		mSelectedBubbleExpandedPosition = -1;
		}
		return true;
		}


		/**
		* Requests a change to the expanded state. Calls {@link Listener#onExpandedChanged} if
		* the value changes.
		@@ -231,9 +372,15 @@ public class BubbleData {
		* @return true if the state changed as a result
		*/
		private boolean setExpandedInternal(boolean shouldExpand) {
		if (DEBUG) {
		Log.d(TAG, "setExpandedInternal: shouldExpand=" + shouldExpand);
		}
		if (mExpanded == shouldExpand) {
		return false;
		}
		if (mSelectedBubble != null) {
		mSelectedBubble.markAsAccessedAt(mTimeSource.currentTimeMillis());
		}
		if (shouldExpand) {
		if (mBubbles.isEmpty()) {
		Log.e(TAG, "Attempt to expand stack when empty!");
		@@ -243,15 +390,126 @@ public class BubbleData {
		Log.e(TAG, "Attempt to expand stack without selected bubble!");
		return false;
		}
		// TODO: bubble.markAsActive() ?
		mSelectedBubble.entry.setShowInShadeWhenBubble(false);
		} else {
		repackAll();
		}
		// TODO: reorder/regroup
		mExpanded = shouldExpand;
		mListener.onExpandedChanged(mExpanded);
		dispatchOnExpandedChanged(mExpanded);
		return true;
		}

		private static long sortKey(Bubble bubble) {
		long key = bubble.getLastActivity();
		if (bubble.isOngoing()) {
		// Set 2nd highest bit (signed long int), to partition between ongoing and regular
		key \|= 0x4000000000000000L;
		}
		return key;
		}

		/**
		* Locates and inserts the bubble into a sorted position. The is inserted
		* based on sort key, groupId is not considered. A call to {@link #packGroup(int)} may be
		* required to keep grouping intact.
		*
		* @param minPosition the first insert point to consider
		* @param newBubble the bubble to insert
		* @return the position where the bubble was inserted
		*/
		private int insertBubble(int minPosition, Bubble newBubble) {
		long newBubbleSortKey = sortKey(newBubble);
		String previousGroupId = null;

		for (int pos = minPosition; pos < mBubbles.size(); pos++) {
		Bubble bubbleAtPos = mBubbles.get(pos);
		String groupIdAtPos = bubbleAtPos.getGroupId();
		boolean atStartOfGroup = !groupIdAtPos.equals(previousGroupId);

		if (atStartOfGroup && newBubbleSortKey > sortKey(bubbleAtPos)) {
		// Insert before the start of first group which has older bubbles.
		mBubbles.add(pos, newBubble);
		return pos;
		}
		previousGroupId = groupIdAtPos;
		}
		mBubbles.add(newBubble);
		return mBubbles.size() - 1;
		}

		private boolean hasBubbleWithGroupId(String groupId) {
		return mBubbles.stream().anyMatch(b -> b.getGroupId().equals(groupId));
		}

		private int findFirstIndexForGroup(String appId) {
		for (int i = 0; i < mBubbles.size(); i++) {
		Bubble bubbleAtPos = mBubbles.get(i);
		if (bubbleAtPos.getGroupId().equals(appId)) {
		return i;
		}
		}
		return 0;
		}

		/**
		* Starting at the given position, moves all bubbles with the same group id to follow. Bubbles
		* at positions lower than {@code position} are unchanged. Relative order within the group
		* unchanged. Relative order of any other bubbles are also unchanged.
		*
		* @param position the position of the first bubble for the group
		*/
		private void packGroup(int position) {
		if (DEBUG) {
		Log.d(TAG, "packGroup: position=" + position);
		}
		Bubble groupStart = mBubbles.get(position);
		final String groupAppId = groupStart.getGroupId();
		List<Bubble> moving = new ArrayList<>();

		// Walk backward, collect bubbles within the group
		for (int i = mBubbles.size() - 1; i > position; i--) {
		if (mBubbles.get(i).getGroupId().equals(groupAppId)) {
		moving.add(0, mBubbles.get(i));
		}
		}
		mBubbles.removeAll(moving);
		mBubbles.addAll(position + 1, moving);
		}

		private void repackAll() {
		if (DEBUG) {
		Log.d(TAG, "repackAll()");
		}
		if (mBubbles.isEmpty()) {
		return;
		}
		Map<String, Long> groupLastActivity = new HashMap<>();
		for (Bubble bubble : mBubbles) {
		long maxSortKeyForGroup = groupLastActivity.getOrDefault(bubble.getGroupId(), 0L);
		long sortKeyForBubble = sortKey(bubble);
		if (sortKeyForBubble > maxSortKeyForGroup) {
		groupLastActivity.put(bubble.getGroupId(), sortKeyForBubble);
		}
		}

		// Sort groups by their most recently active bubble
		List<String> groupsByMostRecentActivity =
		groupLastActivity.entrySet().stream()
		.sorted(GROUPS_BY_LAST_ACTIVITY_DESCENDING)
		.map(Map.Entry::getKey)
		.collect(toList());

		List<Bubble> repacked = new ArrayList<>(mBubbles.size());

		// For each group, add bubbles, freshest to oldest
		for (String appId : groupsByMostRecentActivity) {
		mBubbles.stream()
		.filter((b) -> b.getGroupId().equals(appId))
		.sorted(BUBBLES_BY_LAST_ACTIVITY_DESCENDING)
		.forEachOrdered(repacked::add);
		}
		mBubbles = repacked;
		}

		private void maybeSendDeleteIntent(@DismissReason int reason, NotificationEntry entry) {
		if (reason == BubbleController.DISMISS_USER_GESTURE) {
		Notification.BubbleMetadata bubbleMetadata = entry.getBubbleMetadata();
		@@ -275,13 +533,14 @@ public class BubbleData {
		Bubble bubble = i.next();
		if (bubble.getPackageName().equals(blockedPackage)) {
		i.remove();
		mListener.onBubbleRemoved(bubble, BubbleController.DISMISS_BLOCKED);
		// TODO: handle removal of selected bubble, and collapse safely if emptied (see
		// dismissAll)
		dispatchOnBubbleRemoved(bubble, BubbleController.DISMISS_BLOCKED);
		changed = true;
		}
		}
		if (changed) {
		// TODO: reorder/group
		mListener.apply();
		dispatchApply();
		}
		}

		@@ -295,24 +554,11 @@ public class BubbleData {
		return -1;
		}

		private Bubble removeBubbleWithKey(String key) {
		for (int i = 0; i < mBubbles.size(); i++) {
		Bubble bubble = mBubbles.get(i);
		if (bubble.getKey().equals(key)) {
		mBubbles.remove(i);
		return bubble;
		}
		}
		return null;
		}

		/**
		* The set of bubbles.
		*
		* @deprecated
		*/
		@Deprecated
		public Collection<Bubble> getBubbles() {
		@VisibleForTesting(visibility = PRIVATE)
		public List<Bubble> getBubbles() {
		return Collections.unmodifiableList(mBubbles);
		}

		@@ -327,6 +573,11 @@ public class BubbleData {
		return null;
		}

		@VisibleForTesting(visibility = PRIVATE)
		void setTimeSource(TimeSource timeSource) {
		mTimeSource = timeSource;
		}

		public void setListener(Listener listener) {
		mListener = listener;
		}
		@@ -334,17 +585,6 @@ public class BubbleData {
		boolean shouldAutoExpand(NotificationEntry entry) {
		Notification.BubbleMetadata metadata = entry.getBubbleMetadata();
		return metadata != null && metadata.getAutoExpandBubble()
		&& isForegroundApp(entry.notification.getPackageName());
		}

		/**
		* Return true if the applications with the package name is running in foreground.
		*
		* @param pkgName application package name.
		*/
		boolean isForegroundApp(String pkgName) {
		ActivityManager am = mContext.getSystemService(ActivityManager.class);
		List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1 /* maxNum */);
		return !tasks.isEmpty() && pkgName.equals(tasks.get(0).topActivity.getPackageName());
		&& BubbleController.isForegroundApp(mContext, entry.notification.getPackageName());
		}
		}
		No newline at end of file

packages/SystemUI/src/com/android/systemui/bubbles/BubbleStackView.java

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packages/SystemUI/src/com/android/systemui/bubbles/BubbleTouchHandler.java

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